NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

1 of 1

Analyzing +4 | -1

One mole of mixture of

\mathrm{N}_2, \mathrm{NO}_2

and

\mathrm{N}_2 \mathrm{O}_4

has a mean molar mass of

55.4 \mathrm{~g}.

On heating to a temperature, at which all the

\mathrm{N}_2 \mathrm{O}_4

is dissociated into

\mathrm{NO}_2,

the mean molar mass tends to a lower value of

39.6 \mathrm{~g}.

What is the mole ratio of

\mathrm{N}_2, \mathrm{NO}_2

and

\mathrm{N}_2 \mathrm{O}_4

in the original mixture?

View answer and explanation

Correct option: A

5: 1: 4

Option A is correct because the mole ratio of N2, NO2, and N2O4 in the original mixture is 5:1:4.

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